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Adabox020 LED Glasses - LiPo battery charging problem
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Adabox020 LED Glasses - LiPo battery charging problem

by maerisrael on Tue Nov 16, 2021 11:01 pm

Hi friends,

I made the solder bridge on the back of the LED glasses driver board, and popped a LiPo battery onto the board. I ran the glasses until the LiPo battery gave out (15 hours!) The battery will not charge off the board. I plug in a USB-C power source which works because the board will turn on, but the CRG light does not go on, and the battery does not charge.

Any ideas?

Thanks in advance

Maer...
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Re: Adabox020 LED Glasses - LiPo battery charging problem

by maerisrael on Wed Nov 17, 2021 5:48 pm

I just redid the solder bridge and that doesn't seem to have any affect.

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Re: Adabox020 LED Glasses - LiPo battery charging problem

by adafruit_support_carter on Wed Nov 17, 2021 8:18 pm

Which LiPo battery are you using?

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Re: Adabox020 LED Glasses - LiPo battery charging problem

by maerisrael on Wed Nov 17, 2021 8:23 pm

3.7V 750mAh Battery 782248 Lithium Polymer Ion Rechargeable. The polarity is correct (I had to flip them)

Purchased it from Amazon for a different project. Is there a different spec I need to use?

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Re: Adabox020 LED Glasses - LiPo battery charging problem

by adafruit_support_carter on Wed Nov 17, 2021 9:39 pm

It could be something else about the battery. In general, only the LiPo's from the Adafruit shop are known to work with the charging circuit. In addition to polarity, there's also some protection circuitry on the batteries. So we'd need to verify the behavior with a LiPo from Adafruit.

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Re: Adabox020 LED Glasses - LiPo battery charging problem

by maerisrael on Fri Nov 19, 2021 1:13 pm

ok, i'll get a couple from the shop and try it out. thank you!

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Re: Adabox020 LED Glasses - LiPo battery charging problem

by maerisrael on Sat Nov 27, 2021 1:16 pm

Hello, I picked up two of the Adafruit 100mAh lipo batteries (Product ID: 1570), and get the same behavior. The LED glasses controller board won't charge them, however, they do charge via a CircuitMess board I have on another project. Can I do a board swap?

Thanks

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Re: Adabox020 LED Glasses - LiPo battery charging problem

by adafruit2 on Mon Nov 29, 2021 3:12 pm

please note that if you plugged in the incorrect polarity battery even once, it will destroy the charger

email support@adafruit for a new one if it was not damaged by plugging in the wrong polarity!

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Re: Adabox020 LED Glasses - LiPo battery charging problem

by maerisrael on Mon Nov 29, 2021 3:44 pm

Ok, thank you. I never plugged in battery with the wrong polarity.

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Please be positive and constructive with your questions and comments.